569 results about "Optical instrument" patented technology

The invention relates to an additive manufacturing method and application of an aluminum-based silicon carbide composite material complex component, and the additive manufacturing method of the aluminum-based silicon carbide composite material complex component comprises the following steps: step 1, uniformly mixing silicon carbide powder and aluminum alloy powder, and drying; 2, establishing a structural model for the target part, and importing the structural model into selective laser melting forming equipment; thirdly, selective laser melting forming is conducted; fourthly, linear cutting and surface treatment are conducted; and fifthly, hot isostatic pressing treatment is conducted. The invention further provides application of the aluminum-based silicon carbide composite material complex component to precise structural components such as aviation structural components, guided missile and satellite components and optical instruments. According to the method, the problem of subsequent large-allowance removal of the aluminum-based silicon carbide composite material component is solved, the wettability between the aluminum alloy and the silicon carbide particles is improved, the mechanical property meets the application requirement, and the aluminum-based silicon carbide structural component with stable performance is obtained.

The invention relates to the technical field of intelligent precision calibration of optical instruments, in particular to a primary and secondary mirror calibration method based on a neural network algorithm, which comprises the following steps: step 1, synchronously acquiring multi-physics field coupling data of primary and secondary mirrors; step 2, constructing a dual-mode neural network model, wherein the dual-mode neural network model comprises a first model and a second model; 3, kinematics feasibility verification and dynamic optimization are carried out on the initial prediction value, specifically, a Lie group space parameterization method is adopted to avoid a rotation freedom degree singular point, and a platform reachable working space is adjusted through Jacobian matrix verification; and 4, driving a secondary mirror adjustment platform based on the optimized adjustment parameters, and triggering online incremental learning of the neural network model according to the actual wavefront residual error. Through innovative application of the neural network algorithm, multiple technical problems of a traditional optical system calibration method in an extreme environment and a high-frequency dynamic condition are solved, and the calibration precision, the real-time performance and the efficiency are improved through self-learning and self-adaptive capabilities.

A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.

The invention discloses a portable long-distance automatic focusing laser emission system, and relates to the technical field of automatic focusing of optical instruments. The system comprises a ranging and focusing quantization module, a focal length regulation and control module and a light spot quality quantization and regulation and control module. The focusing adaptation degree is obtained through the obtained focusing regulation and control deviation parameter, whether focal length regulation and control are carried out or not is judged, after the focal length is qualified, the light spot regulation and control deviation degree is obtained in combination with the light spot quality parameter obtained in the pre-emission process of the laser emitter, and whether light spot regulation and control are carried out or not is judged. After the light spot is qualified, a laser emission wire-mounted foreign matter removing instruction is sent to carry out laser emission for removing the target object, so that the focusing and emission precision and the light spot form in the process of emitting laser to remove the target object through the laser emission device are improved; the problem that in the prior art, when the foreign matter on the high-voltage line is removed through laser, the focusing and transmitting precision is low due to the fact that position fluctuation of the foreign matter is not fully considered is solved.

The invention discloses a miniature camera and laser common-caliber optical system and a use method, and relates to the field of laser optical instruments. The problem that an existing multi-band common-caliber optical system cannot achieve integration, multi-functionalization and miniaturization at the same time is solved. The miniature camera and laser common-aperture optical system comprises a zoom optical lens group, a beam expanding telescope group, an electromagnetic galvanometer, a spectroscope, a fast reflecting mirror and a laser light source. The laser converging zoom optical lens group and the fine tracking imaging branch are respectively connected with the zoom cam lens cone and the fine tracking lens cone, the beam expanding telescope group is connected with the antenna frame, and the electromagnetic galvanometer, the spectroscope and the reflector are all connected with respective bases. The optical axis collinear coupling design is adopted among the components, it is ensured that a laser path and an image path are completely overlapped, and high-precision image guide striking control is achieved. The small mobile platform is suitable for industrial precision machining and rapid identification, high-precision tracking and laser precise striking of short-range dynamic targets.

The invention provides an optical element six-degree-of-freedom adjusting and clamping device and an assembling method, and relates to the technical field of optical instruments. The device comprises a supporting base, a ball head adjusting screw, a cantilever spring mechanism and an elastic opposite ejection mechanism. The bottom of the support base is provided with a triangular layout through hole group. The center of gravity of the optical element is in the triangle. The cantilever spring mechanism and the ball head adjusting screw are combined to control Z-axis displacement and rotation around the X / Y axis, and the elastic opposite ejection mechanism and the ball head adjusting screw are combined to control X / Y-axis translation and rotation around the Z axis. All contact interfaces adopt a spherical surface-plane point contact design, and tungsten steel or phosphor bronze is selected as a material. According to the invention, six-degree-of-freedom independent precision adjustment of the optical element can be realized, the error of a clamping surface is as low as 0.068 mu rad, the structure is compact, and the adaptability is high.

An apparatus and method for measuring clotting capacity of a patient's blood comprises a probe having a wetted portion, a well to receive a blood sample to contact the wetted portion, a spring element intermediate the wetted portion and a probe support, and a sensor to determine the displacement of the wetted portion resulting from a displacing force imparted to the wetted portion by a clotting blood sample in the well. Embodiments of the apparatus of the present invention may include a variable capacitance displacement sensor, an eddy current variance sensor, a microelectromechanical sensor and an optical instrument. Embodiments of the apparatus may include a current source. The present invention enables reliable detection of mitochondrial dysfunction and sepsis in a blood sample. Embodiments of the apparatus of the invention may be portable. A probe used in such embodiments may be disposable.

The invention provides a printing optical element, a printing method and a far-image optical instrument, and relates to the technical field of far-image optics, the printing optical element comprises a substrate and a patterning layer, the substrate is transparent, and a printing area is arranged on the first side of the substrate; the patterned layer is located in the printing area and comprises a plurality of function parts protruding from the surface of the substrate, and the function parts are formed through UV printing and distributed in a geometric array mode. Wherein the function part is semitransparent and is in a continuous columnar form; the functional part is reflected by the free-form surface mirror to be imaged to an imaging panel of the far-image optical instrument and presents a first imaging surface; and the first imaging surface and a second imaging surface of the far-image optical instrument for amplifying and presenting the object are distributed at an interval. When a user watches magnified information on the second imaging surface, the focal length can be actively adjusted to switch focusing between the first imaging surface and the second imaging surface, so that eyestrain is relieved, and the effect of adjusting crystalline lenses of eyes to prevent and control myopia is achieved.

An embodiment comprises: a base; a rotor disposed on the base; a ball member disposed between the base and the rotor; a magnet disposed on the rotor; a coil which is disposed on the base so as to face the magnet, and which rotates the rotor by means of interaction with the magnet; a blade part which is connected to the rotor and which has an opening that varies in size by means of the rotation of the rotor; and a first sensor and a second sensor for sensing the displacement of the rotor, wherein the magnet includes a curved surface protruding in the direction toward the coil, and the first sensor and the second sensor face the protruding curved surface of the magnet.

The invention provides a microscope automatic focusing method based on an end-to-end model, and relates to the technical field of optical instruments. The method comprises the following steps: shooting an image on a microscope glass slide through an image acquisition module, and carrying out image preprocessing through a gray histogram equalization algorithm; deploying an end-to-end neural network model at the cloud server, receiving the preprocessed image and predicting a first focusing position value; the first focusing position value is sent to an electric focusing module controlled by a stepping motor, and focusing is completed; and acquiring a second image, performing image preprocessing, predicting a second focusing position value by using the end-to-end neural network model, and sending a relative position between the second focusing position value and the first focusing position value to the electric focusing module to complete final automatic focusing. According to the method, the optimal focusing position is directly predicted from the microscopic image through the deep learning model, a traditional focusing scoring function or an image sequence analysis process is simplified, end-to-end efficient prediction is realized, and the focusing speed and precision are remarkably improved.

The invention discloses a space remote sensing target positioning optical system based on multi-aperture imaging and a calibration method, and relates to the field of remote sensing and aerospace imaging optical instruments. The contradiction that the large view field and high-resolution imaging requirements of a traditional single-aperture optical imaging system are difficult to consider at the same time is solved, accurate positioning of a target is achieved, and the intelligent requirement of a multi-aperture optical imaging system is met. The multi-aperture imaging space remote sensing target positioning sub-aperture imaging optical system comprises an electromagnetic galvanometer, a beam shrinkage telescope group, a fast reflecting mirror and a rear focus lens group. The beam shrinking telescope group is connected with the rear focus lens group through a fast reflecting mirror, and a light beam is connected with the imaging branch through an electromagnetic galvanometer. And after passing through the telescopic system, the imaging light beam is reflected by the fast reflecting mirror and then focused to the detector for imaging. The method is also suitable for a mobile platform for carrying out rapid positioning and high-precision capturing on a dynamic target in the fields of industrial precision machining and space remote sensing.

The present invention provides an optical glass comprising, by weight, 1-12% SiO2, 5-18% B2O3, 40-60% La2O3, 4-20% Y2O3, 1-12% ZrO2, 4-20% Nb2O5, and 4-18% TiO2. Through rational component design, the present invention can produce optical glass with excellent devitrification resistance at a low raw material cost.

The invention discloses a method for obtaining human eye wavefront aberration and a human eye aberration measuring device, and relates to the technical field of optical instruments.The method for obtaining the human eye wavefront aberration is applied to a Hartmann sensor and comprises the steps that an actual slope matrix is obtained through calculation according to a wavefront light spot diagram obtained by the Hartmann sensor; multiplying the generalized inverse matrix of the standard slope matrix by the actual slope matrix to obtain a Zernike coefficient matrix; subtracting the actual slope matrix from the product of the standard slope matrix and the Zernike coefficient matrix to obtain a residual matrix; and updating the Zernike coefficient matrix according to the residual matrix until the residual matrix of the updated Zernike coefficient matrix is smaller than or equal to a preset value. Wherein the standard slope matrix is a matrix formed by wavefront slope of Zernike polynomial full-term superposition. According to the technical scheme provided by the invention, the accuracy of obtaining the wavefront aberration of the human eye can be improved.

The invention relates to the technical field of quantum sensing and optical instruments, and discloses an integrated scanning confocal microscope for diamond NV color center quantum sensing, which comprises a control module, an integrated circuit module, an integrated laser module and an integrated light path module, the control module is used for exciting a diamond NV color center, the integrated light path module realizes two-dimensional scanning of a laser beam on a sample focal plane through a galvanometer, an objective lens is used for collecting NV color center fluorescence, meanwhile, a single-photon counter and a camera are arranged, confocal detection and wide-field microscopic imaging are realized, and the integrated circuit module receives an instruction of the control module. The microscope can realize confocal scanning fluorescence imaging, optical detection magnetic resonance spectrum measurement and NV color center spin coherent control experiments, such as Rabian oscillation, Rahm, Haln echo and spin relaxation experiments, and provides comprehensive experimental ability for diamond NV color center quantum sensing.

Provided are an ophthalmic optical instrument and an optical measurement system. The ophthalmic optical instrument comprises a visual target element, a first lens, a second lens, and a third lens. The first lens and the visual target element are arranged at intervals, and light emitted from the visual target element enters the first lens and exits as parallel light. The second lens is located on one side of the first lens away from the visual target element, and the described parallel light is converged to form an image after passing through the second lens. The third lens is located on one side of the second lens away from the first lens. The ophthalmic optical instrument further comprises a control element connected to the second lens and configured to control the movement of the second lens along its principal optical axis, such that the image formed by the second lens moves to at least one side of the third lens. The second lens in the ophthalmic optical instrument can move along its principal optical axis under the control of the control element, allowing the image formed by the second lens to move accordingly. Therefore, the movement range of the image formed by the second lens is relatively large, thereby improving the measurement range.

The invention relates to an error self-compensation method, device and equipment for rotary filtering and a medium, and belongs to the field of optical instruments. The method comprises the steps that rotary filtering is carried out by regulating and controlling angular displacement of a monochromator, a single-dispersion light beam is obtained, and the single-dispersion light beam covers a single-dispersion wavelength light beam and a multi-dispersion wavelength light beam; the detection wavelength of the single-dispersion light beam is captured, an error self-compensation model is constructed through disturbance wavelengths to carry out error self-compensation, and the disturbance wavelengths cover the thermodynamic disturbance wavelength, the illumination disturbance wavelength, the current disturbance wavelength, the power disturbance wavelength and the mechanical vibration disturbance wavelength. According to the invention, monochromatic light with different wavelengths can be simply, conveniently and efficiently acquired, discontinuous monochromatic light with multiple wavelengths can be acquired, error self-calibration is realized according to multiple factors, and monochromatic light acquisition is more accurate.

The invention provides an optical instrument self-cleaning micro flow cell, and relates to the technical field of optical detection equipment, and the optical instrument self-cleaning micro flow cell comprises a self-cleaning analysis module which is used for analyzing a pollution degree index in a measurement cell, and determining whether to generate a self-cleaning signaling according to the pollution degree index; when it is determined that the self-cleaning signaling is generated, calculating a power adjustment value of the ultrasonic vibrator and a rotating speed adjustment value of the magnetic stirrer; and the control module is used for adjusting the power of the ultrasonic vibrator and the rotating speed of the magnetic stirrer according to the power adjustment value and the rotating speed adjustment value after receiving the self-cleaning signaling. An ultrasonic wave and magnetic force synergistic self-cleaning mode is adopted, a mechanical cleaning device is not needed, damage of mechanical cleaning to the structure and the sealing performance of the flow cell is avoided, the reliability of equipment is improved, the service life of the equipment is prolonged, targeted efficient cleaning is achieved through accurate pollution degree index calculation and self-cleaning parameter adjustment, and the service life of the equipment is prolonged. The cleaning effect can be guaranteed, and energy consumption can be reduced.

The invention discloses an ultraviolet broadband large-view-field detection objective lens, and belongs to the technical field of optical instruments. In order to solve the problems that in the prior art, balance among short-wavelength, large-numerical-aperture, large-view-field and broadband detection is difficult to obtain, and meanwhile system complexity and manufacturing cost are considered, the invention provides an ultraviolet broadband large-view-field detection objective lens. Comprising a first lens group, a second lens group, a third lens group and a fourth lens group which are sequentially and coaxially arranged from an object plane, each lens group comprises a plurality of lenses, and the first lens group and the fourth lens group are variable lens groups. The method can simultaneously meet high requirements on resolution, detection range and detection efficiency, and is suitable for defect detection and quality control in the field of semiconductor wafer manufacturing.

The invention discloses a micro-fluidic chip flatness detection device and method based on an optical system, and relates to the field of optical instruments. The problems that in the prior art, the plane flatness of an internal flow channel and a detection cavity of a micro-fluidic chip cannot be detected, and consequently the stability of a detection result is insufficient are solved. An existing device needs to depend on technologies such as optical interference and microscopic imaging. The device comprises a lever dial indicator, a micro-fluidic chip, a hollow shaft rotating platform and the like. The lever dial indicator is arranged above the micro-fluidic chip, and an observation value is set, so that the lever dial indicator is in contact with the surface of the micro-fluidic chip; the lever dial indicator and the hollow shaft rotating platform are respectively arranged on the optical flat plate; the optical adjusting frame and all mirror surfaces in the mirror surface module are respectively mounted; a spectroscope, a compensation plate, a reflector and a light source of the mirror module are arranged on the same horizontal plane; the observation screen is mounted on the optical adjusting frame; meanwhile, all the optical adjusting frames are respectively arranged on the optical flat plate; the method is also suitable for the application fields of medical treatment, environmental monitoring and the like.

The invention discloses a microscope objective optical system, and relates to the technical field of optical instruments, the microscope objective optical system comprises a first lens group, a second lens group and a third lens group, the three lens groups are arranged, the first lens group has positive refractive power, the second lens group has positive refractive power, and the third lens group has negative refractive power. Meanwhile, the respective composition of the first lens group, the second lens group and the third lens group is limited, and the respective focal distances are limited and meet preset conditions. Based on the above design, the microscope objective lens optical system has the advantages of long working distance, large aperture, high resolution, good imaging performance under broadband, and good correction of chromatic aberration.

The invention provides optical glass which is relatively high in hardness and relatively low in thermal expansion coefficient. The optical glass comprises the following components in percentage by weight: 1-10% of SiO2; 7%-18% of B2O3; 24 to 39 percent of La2O3; 4 to 17 percent of Gd2O3 and Y2O3; 8.5% to 20% of ZnO; 8.5% to 19% of Ta2O5; nb2O5: greater than 0% but less than or equal to 8%; wO3: 0.1 to 8%; zrO2: 0.5 to 10 percent; the ratio of WO3 to Li2O is 2.0 to 8.0, and the ratio of 10 * Li2O to ZrO2 is 1.3 to 10.0. Through reasonable component design, the optical glass has high refractive index, low dispersion, low thermal expansion coefficient and high hardness, and can be widely applied to high-performance optical instruments.

One or more devices, systems, methods, and storage mediums for performing robotic control and / or for manufacturing and / or using a catheter having a tip are provided herein. Examples of such control, catheter manufacturing and use include, but are not limited to, correction of one or more sections or portions of a continuum robot as the continuum robot is moved. Examples of applications include imaging, evaluating, and diagnosing biological objects, such as, but not limited to, for bronchial or other medical applications, and being obtained via one or more optical instruments, such as, but not limited to, optical probes, catheters, endoscopes, and bronchoscopes. Techniques provided herein also improve processing, imaging, and catheter control efficiency while achieving images that are more precise, and also achieve devices, systems, methods, and storage mediums that reduce mental and physical burden and improve ease of use.

An Embodiment includes a stationary unit including a second circuit board, a moving unit including a first circuit board disposed on the second circuit board and an image sensor conductively connected to the first circuit board, and a support unit connecting the first circuit board and the second circuit board and configured to support the moving unit so as to be movable in a direction perpendicular to an optical axis direction, wherein the support unit includes an extension member that includes a plurality of wirings conductively connected to the second circuit board, and the support unit includes a bent region, and a width of a first wiring firstly closest to the bent region among the plurality of wirings is larger than a width of a second wiring secondly closest to the bent region among the plurality of wirings.

Provided is an optical instrument capable of obtaining desired polarization characteristics. The optical instrument is an optical instrument provided with a light source, an incident-side polarization element, a light modulation element, an exit-side first polarization element, and an exit-side second polarization element. The exit-side first polarization element has a wire grid structure and is provided with a plurality of convex portions arranged separately from each other at a pitch shorter than the wavelength of light of a wavelength band used by the light source on one surface of a transparent substrate. The rotation angle of the transmission axis of the exit-side first polarization element with respect to the transmission axis of the incident-side polarization element is within ±8.5°. The exit-side second polarization element has a wire grid structure and is provided with a plurality of convex portions arranged separately from each other at a pitch shorter than the wavelength of light of a wavelength band used by the light source on one surface of a transparent substrate. The convex portions are lattice-shaped convex portions extending in a predetermined direction. The lattice-shaped convex portions sequentially have a reflection layer, a dielectric layer, and an absorption layer from the transparent substrate side. The rotation angle of the absorption axis of the exit-side second polarization element with respect to the absorption axis of the incident-side polarization element is within ±0.7°.

The present application provides an optical glass, which contains, in terms of weight percentage, SiO2: 1-15%; B2O3: 2-18%; La2O3: 35-65%; Y2O3: 5-25%; ZrO2: 2-15%; Nb2O5: 1-15%; TiO2: 5-20%, and the refractive index n d of the optical glass is 1.96 or more. Through reasonable component design, the optical glass obtained by the present application has a desired refractive index and Abbe number, and has a lower density, meeting the lightweight use of optical instruments.

The invention discloses an orthogonal electric drive SMA wire imitated face-centered cubic lattice variable stiffness topological structure, and belongs to the technical field of variable stiffness structures. The whole structure is a cubic frame, is arranged in a face-centered cubic lattice mode, is of a tensegrity structure and achieves self-balance by means of prestress. The structure comprises 1 / 4 spherical nodes located at eight angular points, 1 / 2 spherical nodes located at six face centers, connecting rods and shape memory alloy wires which are orthogonally arranged along twelve edges. The length and the rigidity of each wire can be adjusted by controlling the electrifying current of each wire, so that the directional and continuous adjustment of the rigidity of the whole structure is realized. The magnets are embedded in the spherical nodes, adjacent units can be freely expanded in the X direction, the Y direction and the Z direction through face-to-face combination, and good modularization and reconfigurability are achieved. The invention has the advantages of light structure, simple and convenient control decoupling, expandable space, adjustable rigidity and the like, and can be applied to the fields of ship-borne equipment, industrial robots, optical instruments, rehabilitation assistive devices and the like.

The present application provides an optical glass, which contains, in terms of mole percentage, SiO2: 25-40%; B2O3: 1-8%; La2O3: 1-8%; BaO: 1-6%; CaO: 5-25%; Nb2O5: 5-15%; TiO2: 8-20%; Li2O: 1.5-15%. By containing appropriate amounts of SiO2 and alkali metal oxides and other components, the optical glass has excellent anti-crystallization performance; by containing high refractive index components such as Nb2O5 and TiO2, the optical glass has a relatively high refractive index; by reasonable component design, the glass has a relatively low relative partial dispersion.

The application discloses an optical instrument performance detection system and method based on multi-source data fusion analysis, and relates to the technical field of optical instrument detection, to solve the technical problem that in the prior art, the signal characteristics of environmental light interference and product defects are prone to confusion, and specifically, through the cooperative work of an instrument self-calibration module, a calibration evaluation unit, an environmental light interference detection unit and a health state prediction unit, a full-process intelligent detection system is constructed, the application of multi-source data fusion technology breaks through the limitation of traditional single data detection, multi-modal feature matching, time series data analysis, grid fine monitoring and other technologies improve the accuracy and comprehensiveness of detection, accurate differentiation of environmental light interference and product defects reduces misjudgment and missed judgment, and the proactive maintenance of the hardware health state reduces downtime loss.

The utility model relates to a shading film which adopts a layered structure and comprises a base material layer, an anti-precipitation layer, a plurality of ink layers and a matte layer, and tight combination and performance synergy among the layers are realized through an optimized coating process. The multi-layer ink layer is formed by superposing two or more ink sub-layers, each layer is prepared from shading ink with high shading performance, and the thickness is controlled within the range of 2-4 microns. The matte layer serves as the outermost layer and endows the shading film with the characteristics of low gloss and reflection resistance. The anti-precipitation layer, the ink layer and the matte layer are symmetrically arranged on the base material layer and are formed in the same coating mode, so that tight combination between layers is ensured, and the overall structural stability and optical performance of the shading film are improved. According to the design scheme of the shading film, preparation of the high-performance shading film is achieved through a layered structure and an optimized coating process, the shading film is suitable for camera lenses, optical instruments and various precise optical assemblies, interference of external stray light is effectively prevented, and imaging definition and contrast are improved.

The application discloses an eye fundus periphery aberration measuring device and relates to the technical field of optical instruments. The eye fundus periphery aberration measuring device comprises a mounting piece, a fog vision component and a measuring component. The mounting piece is in a bowl shape. The fog vision component is provided with a plurality of fog vision components, and the plurality of fog vision components are all mounted on the mounting piece and are used for projecting fog vision signals to the inside of the mounting piece in different directions. The measuring component is arranged outside the mounting piece. The mounting piece is provided with a measuring hole, and the measuring component is used for measuring the aberration of the eye fundus through the measuring hole. The technical scheme provided by the application enables the eye fundus periphery aberration measuring device to perform aberration measurement in a larger field of view angle range.